The Magnetic Specific Heat of the BEG Model
M. Gzik-Szumiata and T. Balcerzak
Department of Solid State Physics, University of Łódź, Pomorska 149/153, 90-236 Łódź, Poland
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The magnetic contribution to the specific heat of the Blume-Emery-Griffiths model with spin-one is studied by the cluster variational method in pair approximation. The nearest neighbour correlation functions are taken into account. The temperature dependencies of the specific heat are calculated and discussed in the context of the phase diagrams obtained recently for the thin film with bilayer geometry.
DOI: 10.12693/APhysPolA.97.939
PACS numbers: 75.10.-b, 75.70.-i